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Triangle PQR has an area of 12 ft2. If it is dilated by a scale factor of 3, what will be the area of triangle P’Q’R’? A. 108 ft2 B. 36 ft2 C. 324 ft2 D. None of the above.
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Triangle PQR has an area of 12 ft2. If it is dilated by a scale factor of 3, what will be the area of triangle P’Q’R’?

A. 108 ft2
B. 36 ft2
C. 324 ft2
D. None of the above.

User Nicoptere
by
4.2k points

1 Answer

9 votes

Original area = 12 =
(1)/(2) * b *h

New Area =
(1)/(2)* 3b *3h = 9 * ((1)/(2) *b *h) = 9 * 12 = 108 ft^(2)

Hope it helped!

User Rodrigo Polo
by
4.0k points
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